diff --git a/include/llvm/ProfileData/CoverageMappingReader.h b/include/llvm/ProfileData/CoverageMappingReader.h
index fe567dede94..cd4469c0666 100644
--- a/include/llvm/ProfileData/CoverageMappingReader.h
+++ b/include/llvm/ProfileData/CoverageMappingReader.h
@@ -185,10 +185,7 @@ private:
   std::error_code success() { return error(instrprof_error::success); }
 
 public:
-  ObjectFileCoverageMappingReader(StringRef FileName);
-  ObjectFileCoverageMappingReader(
-      std::unique_ptr<MemoryBuffer> &ObjectBuffer,
-      sys::fs::file_magic Type = sys::fs::file_magic::unknown);
+  ObjectFileCoverageMappingReader(std::unique_ptr<MemoryBuffer> &ObjectBuffer);
 
   std::error_code readHeader();
   std::error_code readNextRecord(CoverageMappingRecord &Record) override;
diff --git a/lib/ProfileData/CoverageMappingReader.cpp b/lib/ProfileData/CoverageMappingReader.cpp
index 42c0f2b0224..f09ddeb37e8 100644
--- a/lib/ProfileData/CoverageMappingReader.cpp
+++ b/lib/ProfileData/CoverageMappingReader.cpp
@@ -286,16 +286,6 @@ std::error_code RawCoverageMappingReader::read() {
   return success();
 }
 
-ObjectFileCoverageMappingReader::ObjectFileCoverageMappingReader(
-    StringRef FileName)
-    : CurrentRecord(0) {
-  auto File = llvm::object::ObjectFile::createObjectFile(FileName);
-  if (!File)
-    error(File.getError());
-  else
-    Object = std::move(File.get());
-}
-
 namespace {
 /// \brief The coverage mapping data for a single function.
 /// It points to the function's name.
@@ -449,7 +439,7 @@ static std::error_code decodeTestingFormat(StringRef Data,
 }
 
 ObjectFileCoverageMappingReader::ObjectFileCoverageMappingReader(
-    std::unique_ptr<MemoryBuffer> &ObjectBuffer, sys::fs::file_magic Type)
+    std::unique_ptr<MemoryBuffer> &ObjectBuffer)
     : CurrentRecord(0) {
   if (ObjectBuffer->getBuffer().startswith(TestingFormatMagic)) {
     // This is a special format used for testing.
@@ -467,8 +457,8 @@ ObjectFileCoverageMappingReader::ObjectFileCoverageMappingReader(
     return;
   }
 
-  auto File = object::ObjectFile::createObjectFile(
-      ObjectBuffer->getMemBufferRef(), Type);
+  auto File =
+      object::ObjectFile::createObjectFile(ObjectBuffer->getMemBufferRef());
   if (!File)
     error(File.getError());
   else